CN106438589B - A kind of exhaust apparatus for closed type hydraulic system - Google Patents
A kind of exhaust apparatus for closed type hydraulic system Download PDFInfo
- Publication number
- CN106438589B CN106438589B CN201611110814.6A CN201611110814A CN106438589B CN 106438589 B CN106438589 B CN 106438589B CN 201611110814 A CN201611110814 A CN 201611110814A CN 106438589 B CN106438589 B CN 106438589B
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- valve
- shut
- seal closure
- connect
- oil
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
- F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
- F15B21/00—Common features of fluid actuator systems; Fluid-pressure actuator systems or details thereof, not covered by any other group of this subclass
- F15B21/04—Special measures taken in connection with the properties of the fluid
- F15B21/044—Removal or measurement of undissolved gas, e.g. de-aeration, venting or bleeding
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Analytical Chemistry (AREA)
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Jet Pumps And Other Pumps (AREA)
- Details Of Reciprocating Pumps (AREA)
Abstract
The invention discloses a kind of exhaust apparatus for closed type hydraulic system, belong to hydraulic system technical field；It includes: vacuum pump, air compressor machine, the second shut-off valve, third shut-off valve, three-way connection, seal closure, wabbler mechanism and excitation mechanism；Excitation mechanism is mounted on the side of fuel tank, and the open end of seal closure docks rear enclosed with oil sac and forms closed cavity；The closed end of seal closure is connect by button-head hinge with wabbler mechanism；The side of seal closure is equipped with three-way connection；Vacuum pump and air compressor machine pass through pipeline respectively and connect with the both ends of the three-way connection of seal closure side, and are respectively equipped with shut-off valve on the pipeline that vacuum pump, air compressor machine are connect with the three-way connection；The present invention in the way of vacuumizing being precipitated the air being dissolved in hydraulic oil, it is uniformly squeezed by external pressure by air purge system, the use for cooperating wabbler mechanism and excitation mechanism makes the bubble being located in gap discharge system together, and then purifies gas existing for closed type hydraulic system.
Description
Technical field
The invention belongs to hydraulic system technical fields, and in particular to a kind of exhaust apparatus for closed type hydraulic system.
Background technique
Currently, realizing the buoyancy-driven unit to move up and down for Deep-sea vessel, closed type hydraulic system is generally used, due to
System assembly and hydraulic oil itself easily make to be mixed into air in hydraulic system；The presence of air in hydraulic oil, easily makes enclosed liquid
Pressure system works under big depth high pressure generates cavitation erosion, to influence the Hydraulic Elements service life, reduces the reliability of system；Traditional liquid
Pressure system exhaust method is only capable of not dissolving in the gas of oil liquid in emptying system, and cannot micro-bubble effectively in discharge system gap
The gas of hydraulic oil is dissolved under gas and micro normal pressure.
Summary of the invention
In view of this, the object of the present invention is to provide a kind of exhaust apparatus for closed type hydraulic system, in Closed Hydraulic
In system, by the way that the air being dissolved in hydraulic oil is precipitated in the way of vacuumizing, is uniformly squeezed by external pressure and air is discharged
System cooperates the use of wabbler mechanism and excitation mechanism, makes the micro-bubble being located in gap discharge system together, and then purify
Gas existing for closed type hydraulic system.
The present invention is achieved through the following technical solutions:
A kind of exhaust apparatus for closed type hydraulic system, the closed type hydraulic system include: oil sac, pressure-resistant cover, valve group,
Hydraulic pump, fuel tank, piston and the first shut-off valve；Oil sac docks to form a closed cavity with pressure-resistant cover, and closed cavity is provided with
Hydraulic oil；Hydraulic pump is connected to by valve group with the closed cavity；Fuel tank is provided with hydraulic oil, the oil outlet of bottom surface with it is hydraulic
Pump connection, the oil inlet of bottom surface are connect with valve group；Piston bush closes fuel tank in fuel tank, and piston is equipped with through-hole,
The through hole is provided with the first shut-off valve；
The exhaust apparatus includes: vacuum pump, air compressor machine, the second shut-off valve, third shut-off valve, three-way connection, seal closure, shakes
Swinging mechanism and excitation mechanism；
The seal closure is one end open cylinder closed at one end；
Integrated connection relationship is as follows: excitation mechanism is mounted on the side of fuel tank, for providing pulsed vibration to fuel tank；
Rear enclosed is docked with oil sac and forms closed cavity in the open end of seal closure；The closed end of seal closure passes through button-head hinge
It is connect with wabbler mechanism, wabbler mechanism is for making the closed type hydraulic system by the intermittent inclination set angle of setting rule；
The side of seal closure is equipped with three-way connection；
Vacuum pump and air compressor machine pass through pipeline respectively and connect with the both ends of the three-way connection of seal closure side, and in vacuum pump
The pipeline connecting with the three-way connection is equipped with the second shut-off valve, sets on the pipeline that air compressor machine is connect with the three-way connection
There is third shut-off valve.
It further, further include pressure vacuum gauge and pressure gauge, the pressure vacuum gauge is mounted on vacuum pump and described three
On the pipeline of pass joint connection, the pressure gauge is mounted on the pipeline that air compressor machine is connect with the three-way connection.
The utility model has the advantages that the present invention is more conducive to purification hydraulic system compared to conventional exhaust method, it can not only empty and be
Do not dissolved in system oil liquid with gas existing for air pocket, can be with molten under micro-bubble gas in emptying system gap and normal pressure
Enter the gas of oil liquid, therefore, the invention enables the working media in closed type hydraulic system is cleaner, so that system be protected to reduce
Cavitation intensity improves the system component service life.
Detailed description of the invention
Fig. 1 is structure composition figure of the invention.
Wherein, 1- vacuum pump, 2- air compressor machine, the second shut-off valve of 3-, 4- three-way connection, 5- seal closure, 6- oil sac, 7- pressure resistance
Cover, 8- valve group, 9- hydraulic pump, 10- fuel tank, 11- piston, 12- wabbler mechanism, 13- excitation mechanism, 14- pressure vacuum gauge, 15-
Pressure gauge, the first shut-off valve of 16-, 17- third shut-off valve.
Specific embodiment
The present invention will now be described in detail with reference to the accompanying drawings and examples.
The present invention provides a kind of exhaust apparatus for closed type hydraulic system, referring to attached drawing 1, comprising: vacuum pump 1, sky
Press 2, the second shut-off valve 3, third shut-off valve 17, three-way connection 4, seal closure 5, wabbler mechanism 12, excitation mechanism 13, vacuum pressure
Power table 14 and pressure gauge 15；
Its peripheral equipment is closed type hydraulic system, it includes: oil sac 6, pressure-resistant cover 7, valve group 8, hydraulic pump 9, fuel tank 10, lives
Plug 11 and the first shut-off valve 16；The bottom surface of the fuel tank 10 is respectively equipped with oil outlet and oil inlet；Oil sac 6 is docked with pressure-resistant cover 7
A closed cavity is formed, closed cavity is provided with hydraulic oil；Hydraulic pump 9 is connected to by valve group 8 with the closed cavity；Fuel tank
10 are provided with hydraulic oil, and the oil outlet of bottom surface is connect with hydraulic pump 9, and the oil inlet of bottom surface is connect with valve group 8；11 sets of piston
It is closed in fuel tank 10, and by fuel tank 10, piston 11 is equipped with through-hole, and the through hole is provided with the first shut-off valve 16, leads to
Whether the cavity for crossing the first shut-off valve 16 control fuel tank 10 is connected to outside atmosphere；
The seal closure 5 is one end open cylinder closed at one end；
Integrated connection relationship is as follows: excitation mechanism 13 is mounted on the side of fuel tank 10, for providing pulsed to fuel tank 10
Vibration；
After the open end of seal closure 5 is docked with oil sac 6, the closing of seal closure 5 is made to form closed cavity；The envelope of seal closure 5
Closed end is connect by button-head hinge with wabbler mechanism 12, and wabbler mechanism 12 is according to the intermittent inclination set angle of setting rule；
The side of seal closure 5 is equipped with three-way connection 4；
Vacuum pump 1 and air compressor machine 2 are connect by pipeline with the both ends of the three-way connection 4 of 5 side of seal closure respectively, and true
1 pipeline that is connect with the three-way connection 4 of sky pump equipped with the second shut-off valve 3 and pressure vacuum gauge 14, air compressor machine 2 with it is described
The pipeline that three-way connection 4 connects is equipped with third shut-off valve 17 and pressure gauge 15.
Working principle: when initial, the first shut-off valve 16 is in close state, at the second shut-off valve 3 and third shut-off valve 17
In closed state；Start hydraulic pump 9, flows into the hydraulic oil in fuel tank 10 in hydraulic pump 9 by its oil outlet, then via valve group
8 flow into oil sac 6, so that closing valve group 8 after more hydraulic oil is located in oil sac 6 as far as possible, close hydraulic pump 9 and stop working；It is living
Plug 11 is moved as hydraulic oil flows into oil sac 6 to tank bottoms；
The second shut-off valve 3 is opened, and starts vacuum pump 1 closed cavity is formed by seal closure 5 and vacuumize, it is described
Closed cavity (reads vacuum degree by pressure vacuum gauge 14) after being in vacuum state setting time, the deformation of oil sac 6 make oil sac 6 with
The volume of closed cavity that pressure-resistant cover 7 is formed becomes larger, the bubbing at leisure of the hydraulic oil in oil sac 6, Oil-gas Separation, gas position
After above the hydraulic oil, the second shut-off valve 3 is closed, closes vacuum pump 1；
Third shut-off valve 17 is opened, and starts air compressor machine 2, the gas that setting pressure is filled in Xiang Suoshu closed cavity is (logical
Excess pressure table 15 reads gas pressure)；Meanwhile open valve group 8, and open the first shut-off valve 16 on piston 11, oil sac 6 with it is resistance to
The gas above hydraulic oil that pressure cover 7 is formed by closed cavity is drained under the influence of air pressure in fuel tank 10, and further
Fuel tank is discharged by the first shut-off valve 16, until there is hydraulic oil discharge, i.e., does not have air in expression closed cavity, closes valve group 8,
The gas for gas existing for air pocket and largely dissolving in hydraulic oil under normal pressure has been discharged；At this moment, 10 inner bottom surface of fuel tank with
The gas for dissolving in hydraulic oil in hydraulic oil and system gap under micro-bubble gas and micro normal pressure is filled between piston 11；
Start wabbler mechanism 12, makes closed type hydraulic system to set the intermittent inclination set angle of rule, meanwhile, starting
The vibration of 13 oil dropping apparatus of excitation mechanism, 10 pulsed, makes hydraulic oil be sufficient filling with the small gap between piston 11 and fuel tank 10, in turn
Micro-bubble gas in small gap is squeezed out using hydraulic oil, and by the first shut-off valve 16 discharge on piston 11, closes first
Shut-off valve 16；
The above process is repeated several times, the gas for dissolving in hydraulic oil in system gap under micro-bubble gas and normal pressure is effective
Discharge shakes closed type hydraulic system, carefully debates and listen, if voiceless sound, i.e., bubble is not present in hydraulic oil, gas in emptying system
Body.
In conclusion the above is merely preferred embodiments of the present invention, being not intended to limit the scope of the present invention.
All within the spirits and principles of the present invention, any modification, equivalent replacement, improvement and so on should be included in of the invention
Within protection scope.
Claims (2)
1. a kind of exhaust apparatus for closed type hydraulic system, the closed type hydraulic system include: oil sac (6), pressure-resistant cover (7),
Valve group (8), hydraulic pump (9), fuel tank (10), piston (11) and the first shut-off valve (16)；Oil sac (6) docks shape with pressure-resistant cover (7)
At a closed cavity, closed cavity is provided with hydraulic oil；Hydraulic pump (9) is connected to by valve group (8) with the closed cavity；Oil
Case (10) is provided with hydraulic oil, and the oil outlet of bottom surface is connect with hydraulic pump (9), and the oil inlet of bottom surface is connect with valve group (8)；
Piston (11) is sleeved in fuel tank (10), and fuel tank (10) are closed, and piston (11) is equipped with through-hole, is provided in the through hole
First shut-off valve (16)；
It is characterised by comprising: vacuum pump (1), air compressor machine (2), the second shut-off valve (3), third shut-off valve (17), three-way connection
(4), seal closure (5), wabbler mechanism (12) and excitation mechanism (13)；
The seal closure (5) is one end open cylinder closed at one end；
Integrated connection relationship is as follows: excitation mechanism (13) is mounted on the side of fuel tank (10), for providing pulse to fuel tank (10)
Formula vibration；
Rear enclosed is docked with oil sac (6) and forms closed cavity in the open end of seal closure (5)；The closed end of seal closure (5) passes through ball
Head hinge is connect with wabbler mechanism (12), and wabbler mechanism (12) is for keeping the closed type hydraulic system regular intermittently by setting
Tilt set angle；The side of seal closure (5) is equipped with three-way connection (4)；
Vacuum pump (1) and air compressor machine (2) are connect by pipeline with the both ends of the three-way connection (4) of seal closure (5) side respectively, and
The second shut-off valve (3) are equipped on the pipeline that vacuum pump (1) is connect with the three-way connection (4), in air compressor machine (2) and described three
The pipeline of pass joint (4) connection is equipped with third shut-off valve (17).
2. a kind of exhaust apparatus for closed type hydraulic system as described in claim 1, which is characterized in that further include vacuum pressure
Power table (14) and pressure gauge (15), the pressure vacuum gauge (14) are mounted on what vacuum pump (1) was connect with the three-way connection (4)
On pipeline, the pressure gauge (15) is mounted on the pipeline that air compressor machine (2) is connect with the three-way connection (4).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611110814.6A CN106438589B (en) | 2016-12-06 | 2016-12-06 | A kind of exhaust apparatus for closed type hydraulic system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611110814.6A CN106438589B (en) | 2016-12-06 | 2016-12-06 | A kind of exhaust apparatus for closed type hydraulic system |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106438589A CN106438589A (en) | 2017-02-22 |
| CN106438589B true CN106438589B (en) | 2019-03-08 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201611110814.6A Expired - Fee Related CN106438589B (en) | 2016-12-06 | 2016-12-06 | A kind of exhaust apparatus for closed type hydraulic system |
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Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109911833B (en) * | 2018-11-12 | 2022-12-13 | 中航通飞研究院有限公司 | Exhaust method of passive brake system of airplane |
| CN110725832B (en) * | 2019-10-16 | 2022-01-14 | 北京首钢股份有限公司 | Hydraulic system air cavity removing device with hydraulic lock and method |
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| CN1126506A (en) * | 1993-05-25 | 1996-07-10 | 哈坎·英瓦斯特 | Method and apparatus in a fluid-operating system |
| DE19913969C1 (en) * | 1999-03-18 | 2000-10-05 | Polynorm Gmbh | Air removal from hydraulic fluids by the use of a micro-bubble separator |
| DE10117619A1 (en) * | 2000-09-07 | 2002-03-28 | Polynorm Gmbh | Degasing method and device for hydraulic system e.g. heating and cooling system, has pump and non-return valves controlled for providing vacuum in degasing container |
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|---|---|---|---|---|
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| CN85104763A (en) * | 1985-06-13 | 1987-01-28 | 沈汉石 | Eliminate the method and apparatus of air pocket in the hydraulic system |
| CN1126506A (en) * | 1993-05-25 | 1996-07-10 | 哈坎·英瓦斯特 | Method and apparatus in a fluid-operating system |
| DE19913969C1 (en) * | 1999-03-18 | 2000-10-05 | Polynorm Gmbh | Air removal from hydraulic fluids by the use of a micro-bubble separator |
| DE10117619A1 (en) * | 2000-09-07 | 2002-03-28 | Polynorm Gmbh | Degasing method and device for hydraulic system e.g. heating and cooling system, has pump and non-return valves controlled for providing vacuum in degasing container |
| CN101025175A (en) * | 2006-02-17 | 2007-08-29 | 玛涅蒂玛瑞利动力系公开有限公司 | Method and plant for filling a hydraulic circuit with a control fluid |
| CN1975183A (en) * | 2006-12-22 | 2007-06-06 | 浙江大学 | Pressure oil box for removing gas in hydraulic oil liquid |
| CN201396343Y (en) * | 2009-04-29 | 2010-02-03 | 淮安信息职业技术学院 | Device for removing cavitation in hydraulic system |
| FR2950661A3 (en) * | 2009-09-28 | 2011-04-01 | Renault Sa | Hydraulic circuit i.e. hydraulic control circuit, purging device for clutch of motor vehicle, has vacuum pump connected to settling tank by duct, where settling tank is connected to connection units by another duct |
| CN203730644U (en) * | 2014-01-20 | 2014-07-23 | 江苏轩瑞结构减振设备有限公司 | Liquid filling device of large hydraulic damper |
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| CN106438589A (en) | 2017-02-22 |
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